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INSTALLATION
INSTALLATION
1
9
8
7
6
5
4
3
2
10
11
12
N
L
1
2
3
4
OFF
ON
OFF
ON
HW
CH
1
2
3
4
Room Thermostat
Central Heating Control
L
N
E
Mains Supply
Fed Via Double
Pole Isolator
230 VAC ~ 5 Amps
Danfoss
WB12
Wiring
Centre
HTG
VALVE
HW
VALVE
Typical schematic wiring diagram for an unvented installation
The electrical installation must
comply with IEE requirements.
For electrical installation
refer to BS7671
Note: Do not attempt
the electrical work unless
you are competent to carry
out to the above standard
Blue
Bl
Brown
Br
Green
Grey
Green / Yellow
G
Gr
G/Y
WIRE COLOUR LEGEND
Black
Orange
Yellow
White
Red
B
Or
Y
Wh
R
Br
Bl
G/Y
Br
Br
Bl
G/Y
Or
Gr
5 Amps
Br
Bl
G/Y
Br
Br
B
*Br
Bl
G/Y
Br
B
Bl
Br
Br
Br
Br
Bl
B
G/Y
* Blue core used
from standard 3 core
flex please ensure you
use brown sleeving at
both terminating ends
to identify core potential.
4 core cable
L
N
B
Br
Bl G/Y
Boiler
Pump
V4043A
TWO PORT
ZONE VALVE
A
B
HTG
Br
Bl G/Y
Or
Gr
V4043A
TWO PORT
ZONE VALVE
A
B
DHW
Br
Bl G/Y Or Gr
IN
L
IN
L
N
E
SL2 SL1
Mains In
L
N
E
(S-PLAN) WIRING DIAGRAM WITH TWO 2 PORT VALVES
Br
Bl
G/Y
B
Or
ELECTRONICS
1
C
2
1
C
2
Dual Cylinder Stat
Overheat Stat
Spade
connectors
required
for earth
connections
Control Stat
G/Y
Br
R (Supplied with stat)
*Br
B
4 core cable
*Ideal Logic Heat
H
(without outside sensor)
*For Logic System S
ignore pump wiring
IN
L
IN
L
N
E
SL2 SL1
Mains In
1
9
8
7
6
5
4
3
2
10
11
12
N
L
1
2
3
4
OFF
ON
OFF
ON
HW
CH
1
2
3
4
Room Thermostat
Central Heating Control
1
C
2
1
C
2
Dual Cylinder Stat
Overheat Stat
Spade
connectors
required
for earth
connections
Control Stat
L
N
E
Mains Supply
Fed Via Double
Pole Isolator
230 VAC ~ 5 Amps
HTG
VALVE
HW
VALVE
Typical schematic wiring diagram for an unvented installation
The electrical installation must
comply with IEE requirements.
For electrical installation
refer to BS7671
Note: Do not attempt
the electrical work unless
you are competent to carry
out to the above standard
Blue
Bl
Brown
Br
Green
Grey
Green / Yellow
G
Gr
G/Y
WIRE COLOUR LEGEND
Black
Orange
Yellow
White
Red
B
Or
Y
Wh
R
Br
Bl
G/Y
Wh
Br
Br
Bl
G/Y
Or
B
Gr
Gr
5 Amps
Br
Bl
G/Y
Br
Br
B
*Br
Bl
G/Y
Bl
Br
Br
Br
Br
Bl
B
G/Y
G/Y
Br
R (Supplied with stat)
*Br
B
* Blue core used
from standard 3 core
flex please ensure you
use brown sleeving at
both terminating ends
to identify core potential.
4 core cable
4 core cable
L
N
B
Br
Bl
G/Y
Boiler
Pump
A
B
HTG
Wh
Bl G/Y
Or
Gr
A
B
DHW
Br
Bl G/Y Or Gr
L
N
E
(Y-PLAN) WIRING DIAGRAM WITH 3 PORT VALVE/2 PORT SAFETY VALVE
Br
Bl
G/Y
B
B
ELECTRONICS
V4073A
MID POSITION
ZONE VALVE
V4043A
TWO PORT
ZONE VALVE
*Ideal Logic Heat
H
(without outside sensor)
*For Logic System S
ignore pump wiring
